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crimbo
25th September 2013, 08:39 PM
I know l haven't even got it yet ..'. but
EvFs are rubbish for astrophotography ... they destroy your dark adaptation
So an option to have the EVF dim and give a red only output would be a nice option

Bluegrass Jim
25th September 2013, 09:32 PM
Hello Chris,
That's a great suggestion, whether it is feasible is another matter, I know what you mean as I noticed the same thing with my E-M5. Maybe a digital back for the OM-1 is the answer as it has the best viewfinder of any camera ever!;)

Regards Jim.

PeterBirder
25th September 2013, 10:43 PM
The "review" referred to in this thread http://e-group.uk.net/forum/showthread.php?t=29199 indicates that the E-M1 EVF already has a feature which automatically reduces the viewfinder brightness in low light.

" A novel feature called Auto Luminance enables the EVF to tailor its viewing brightness according to the lighting condition of the scene. Acting like an environment sensor, the idea is to more closely match the EVF response to actual ambient dynamics. If the lighting is bright and sunny, the E-M1’s EVF will produce a bright sensation without appearing as if there is a ‘stopped-down’ effect, which is what you see in the E-M5.

Similarly under very lowlight conditions, the feature will cause the EVF to lower its luminance rather than behaving as if to overexpose. In the E-M5, the response would have been to increase shadow details to the extent that the overall viewing experience lacks realism. To achieve this, the EVF’s backlit illumination can now be automatically controlled with stepped adjustments to tone up (in bright light) or down (in darker situations)."

A firmware change to change to a red output should be feasible but I'm not sure Olympus would see a big enough market to make it worth doing.

According to the Olympus "Product Sheet" the EVF brightness can also be adjusted by " +/- 7 levels"

Regards.*chr

crimbo
26th September 2013, 06:19 AM
Thanks Pete
The VF 2 on the EPM-2 also can have'it's brightness lowered by 7 levels .... but it is no Were near enough
You maybe right about Olympus not seeing it as a worthwhile upgrade but the Astrophotography photography market is growing